Renormalized holographic entanglement entropy for Quadratic Curvature Gravity

Understand

We derive a covariant expression for the renormalized holographic entanglement entropy for Conformal Field Theories (CFTs) dual to Quadratic Curvature Gravity in arbitrary dimensions.

• This expression is written as the sum of the bare entanglement entropy functional obtained using standard conical defect techniques, and a counterterm defined at the boundary of the extremal surface of the functional.
• The latter corresponds to the cod-2 self-replicating part of the extrinsic counterterms when evaluated on the replica orbifold.
• This renormalization method isolates the universal terms of the holographic entanglement entropy functional.